It may also be due to the shearing process of the strip in the slitting machine equipment, due to the appearance of obvious burrs on both sides of the inconsistency and bending. For example, in the winding process because there is a burr side and burr larger side of the plate thickness is larger side of the plate thickness is larger, the volume diameter is large and produces a flared barrel to form the edge of the extension of the bend. This situation should be inserted on the other side of the appropriated thickness of paper or do split processing.
In addition, it may also be due to the unevenness of the strip edge, the presence of wavy, which will lead to its edge thickness changes and cause cutting edge extension or due to the slitter blade side sintering, blade and blade improper contact between the blade side roughness, and produce strip edge wavy. Specific countermeasures are: increase the horizontal clearance to reduce the side pressure. Select the blade suitable for the material being cut.
In addition, during the slitting process, we may encounter the problem of horizontal folding of the steel strip. For such a situation, the first may be due to the blade involved in the production of folding marks. For example, when the slitter cuts a narrow strip width, the strip is caught by the two outer blades because the finger press does not fill the gap between the two outer edges. In addition, it may be due to the winding reel jaws at the production of fold marks, steel strip in the winding machine when the first circle is not close, and in this state of expansion continue to wind when produced.
In the operation of the slitting machine equipment, may also be found in the slitting products appear above the obvious knife marks, which is likely to be caused by the pressure plate to produce knife marks, due to the pressure plate and through the plate height inconsistency so that its push pressure on the steel strip is too large and produced. Or the knife marks may be caused by the upward or downward jumping of the tool platen.
